private absImageStream accessImage(string imagepath)
        {
            FileInfo       f = new FileInfo(imagepath);
            absImageStream ais;

            switch (f.Extension)
            {
            case ".001":
            case ".dmg":
                i   = new DDSetStream(imagepath);
                ais = new DDSetStream(imagepath);

                break;

            default:
                i   = new DDSetStream(imagepath);
                ais = new DDSetStream(imagepath);
                break;
            }

            return(i);
        }
        private absImageStream accessImage(string imagepath)
        {
            FileInfo f = new FileInfo(imagepath);
            absImageStream ais;

            switch (f.Extension)
            {
                case ".001": case ".dmg":
                    i = new DDSetStream(imagepath);
                    ais = new DDSetStream(imagepath);

                    break;
                default:
                    i = new DDSetStream(imagepath);
                    ais = new DDSetStream(imagepath);
                    break;
            }

            return i;
        }